Line-attenuator-line: an alternative method for in-fixture calibration

This work deals with in-fixture calibration using line-attenuator-reflect, LAR, and line-attenuator-line, LAL, as calibration standards. A novel procedure for in-fixture calibration using line-attenuator-line is presented. To demonstrate the usefulness of the proposed in-fixture calibration, the measured S parameters of a medium power GaAs HJ-FET NE651R479A are corrected with line-attenuator-reflect and line-attenuator-line. The S parameters corrected with LAR and LAL are in good agreement and any significant discrepancies were observed.